Jonathan Edwards is in Edinburgh where some of the world's best runners will be tackling the undulating cross country course set in picturesque Holyrood Park. World champion Gebre Gebremariam will be attempting to win the Edinburgh race for the first time, having been runner-up last year. If successful, he would be adding his name to a star-studded roll of honour which includes Ethiopian legends Kenenisa Bekele and Tirunesh Dibaba. Talented young Briton Steph Twell has gone close in the women's race in the last couple of years while another home-grown runner, Andy Baddeley, has won the men's 4km race for the past two years. Commentary comes from Steve Cram and Brendan Foster.